diff --git a/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/30.beyond/annex.en.md b/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/30.beyond/annex.en.md
index 73f6b1e4d..c9656e886 100644
--- a/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/30.beyond/annex.en.md
+++ b/12.temporary_ins/05.coordinates-systems/40.spherical-coordinates/30.beyond/annex.en.md
@@ -1,11 +1,9 @@
 ---
 title: Cylindrical coordinates
-published: true
+published: false
 routable: false
 visible: false
 lessons:
-    - slug:
-      order:
     - slug: cylindrical-coordinates-linear
       order: 3
 ---